Re: duplicate files

['Jason White' via MacVisionaries]

My understanding (which may be wrong) is that, by default, copying a file on the APFS file system does not duplicate the data, and therefore does not use significantly more disk space.   APFS is a “copy-on-write” file system, which means that the data are copied only when the duplicate file is modified.   On 1/10/21, 15:24, "macvisionaries@googlegroups.com" <macvisionaries@googlegroups.com> wrote: Hi,   On the Mac, is there a built in tool or way to check your files for duplicates or can anyone recommend an accessible Mac app to do this. I suspect I have lots of duplicate files and I need to make more space.   Thanks, Christina   -- The following information is important for all members of the Mac Visionaries list.   If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself.   Your Mac Visionaries list moderator is Mark Taylor.  You can reach mark at:  mk...@ucla.edu and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com   The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/macvisionaries/84A351F7-F961-485C-8F46-D09B011B6DE6%40gmail.com.   -- The following information is important for all members of the Mac Visionaries list.   If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself.   Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: mk...@ucla.edu and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com   The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/macvisionaries/91021C18-BC27-104C-8DE7-9B3CED8ED466%40hxcore.ol.